using System;
using System.Runtime.Serialization;

namespace Newtonsoft.Json
{
	/// <summary>
	/// The exception thrown when an error occurs while reading JSON text.
	/// </summary>
	[Serializable]
	public class JsonReaderException : JsonException
	{
		/// <summary>
		/// Gets the line number indicating where the error occurred.
		/// </summary>
		/// <value>The line number indicating where the error occurred.</value>
		public int LineNumber { get; private set; }

		/// <summary>
		/// Gets the line position indicating where the error occurred.
		/// </summary>
		/// <value>The line position indicating where the error occurred.</value>
		public int LinePosition { get; private set; }

		/// <summary>
		/// Gets the path to the JSON where the error occurred.
		/// </summary>
		/// <value>The path to the JSON where the error occurred.</value>
		public string Path { get; private set; }

		/// <summary>
		/// Initializes a new instance of the <see cref="T:Newtonsoft.Json.JsonReaderException" /> class.
		/// </summary>
		public JsonReaderException()
		{
		}

		/// <summary>
		/// Initializes a new instance of the <see cref="T:Newtonsoft.Json.JsonReaderException" /> class
		/// with a specified error message.
		/// </summary>
		/// <param name="message">The error message that explains the reason for the exception.</param>
		public JsonReaderException(string message)
			: base(message)
		{
		}

		/// <summary>
		/// Initializes a new instance of the <see cref="T:Newtonsoft.Json.JsonReaderException" /> class
		/// with a specified error message and a reference to the inner exception that is the cause of this exception.
		/// </summary>
		/// <param name="message">The error message that explains the reason for the exception.</param>
		/// <param name="innerException">The exception that is the cause of the current exception, or a null reference (Nothing in Visual Basic) if no inner exception is specified.</param>
		public JsonReaderException(string message, Exception innerException)
			: base(message, innerException)
		{
		}

		/// <summary>
		/// Initializes a new instance of the <see cref="T:Newtonsoft.Json.JsonReaderException" /> class.
		/// </summary>
		/// <param name="info">The <see cref="T:System.Runtime.Serialization.SerializationInfo" /> that holds the serialized object data about the exception being thrown.</param>
		/// <param name="context">The <see cref="T:System.Runtime.Serialization.StreamingContext" /> that contains contextual information about the source or destination.</param>
		/// <exception cref="T:System.ArgumentNullException">The <paramref name="info" /> parameter is null. </exception>
		/// <exception cref="T:System.Runtime.Serialization.SerializationException">The class name is null or <see cref="P:System.Exception.HResult" /> is zero (0). </exception>
		public JsonReaderException(SerializationInfo info, StreamingContext context)
			: base(info, context)
		{
		}

		internal JsonReaderException(string message, Exception innerException, string path, int lineNumber, int linePosition)
			: base(message, innerException)
		{
			Path = path;
			LineNumber = lineNumber;
			LinePosition = linePosition;
		}

		internal static JsonReaderException Create(JsonReader reader, string message)
		{
			return Create(reader, message, null);
		}

		internal static JsonReaderException Create(JsonReader reader, string message, Exception ex)
		{
			return Create(reader as IJsonLineInfo, reader.Path, message, ex);
		}

		internal static JsonReaderException Create(IJsonLineInfo lineInfo, string path, string message, Exception ex)
		{
			message = JsonPosition.FormatMessage(lineInfo, path, message);
			int lineNumber;
			int linePosition;
			if (lineInfo != null && lineInfo.HasLineInfo())
			{
				lineNumber = lineInfo.LineNumber;
				linePosition = lineInfo.LinePosition;
			}
			else
			{
				lineNumber = 0;
				linePosition = 0;
			}
			return new JsonReaderException(message, ex, path, lineNumber, linePosition);
		}
	}
}
